Integrand size = 15, antiderivative size = 34 \[ \int \frac {\sqrt {1+a x}}{\sqrt {x}} \, dx=\sqrt {x} \sqrt {1+a x}+\frac {\text {arcsinh}\left (\sqrt {a} \sqrt {x}\right )}{\sqrt {a}} \]
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Time = 0.01 (sec) , antiderivative size = 34, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.200, Rules used = {52, 56, 221} \[ \int \frac {\sqrt {1+a x}}{\sqrt {x}} \, dx=\frac {\text {arcsinh}\left (\sqrt {a} \sqrt {x}\right )}{\sqrt {a}}+\sqrt {x} \sqrt {a x+1} \]
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Rule 52
Rule 56
Rule 221
Rubi steps \begin{align*} \text {integral}& = \sqrt {x} \sqrt {1+a x}+\frac {1}{2} \int \frac {1}{\sqrt {x} \sqrt {1+a x}} \, dx \\ & = \sqrt {x} \sqrt {1+a x}+\text {Subst}\left (\int \frac {1}{\sqrt {1+a x^2}} \, dx,x,\sqrt {x}\right ) \\ & = \sqrt {x} \sqrt {1+a x}+\frac {\sinh ^{-1}\left (\sqrt {a} \sqrt {x}\right )}{\sqrt {a}} \\ \end{align*}
Time = 0.12 (sec) , antiderivative size = 48, normalized size of antiderivative = 1.41 \[ \int \frac {\sqrt {1+a x}}{\sqrt {x}} \, dx=\sqrt {x} \sqrt {1+a x}+\frac {2 \text {arctanh}\left (\frac {\sqrt {a} \sqrt {x}}{-1+\sqrt {1+a x}}\right )}{\sqrt {a}} \]
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Time = 0.35 (sec) , antiderivative size = 41, normalized size of antiderivative = 1.21
method | result | size |
meijerg | \(-\frac {-2 \sqrt {\pi }\, \sqrt {a}\, \sqrt {x}\, \sqrt {a x +1}-2 \sqrt {\pi }\, \operatorname {arcsinh}\left (\sqrt {a}\, \sqrt {x}\right )}{2 \sqrt {a}\, \sqrt {\pi }}\) | \(41\) |
default | \(\sqrt {x}\, \sqrt {a x +1}+\frac {\sqrt {\left (a x +1\right ) x}\, \ln \left (\frac {\frac {1}{2}+a x}{\sqrt {a}}+\sqrt {a \,x^{2}+x}\right )}{2 \sqrt {a x +1}\, \sqrt {x}\, \sqrt {a}}\) | \(57\) |
risch | \(\sqrt {x}\, \sqrt {a x +1}+\frac {\sqrt {\left (a x +1\right ) x}\, \ln \left (\frac {\frac {1}{2}+a x}{\sqrt {a}}+\sqrt {a \,x^{2}+x}\right )}{2 \sqrt {a x +1}\, \sqrt {x}\, \sqrt {a}}\) | \(57\) |
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none
Time = 0.28 (sec) , antiderivative size = 90, normalized size of antiderivative = 2.65 \[ \int \frac {\sqrt {1+a x}}{\sqrt {x}} \, dx=\left [\frac {2 \, \sqrt {a x + 1} a \sqrt {x} + \sqrt {a} \log \left (2 \, a x + 2 \, \sqrt {a x + 1} \sqrt {a} \sqrt {x} + 1\right )}{2 \, a}, \frac {\sqrt {a x + 1} a \sqrt {x} - \sqrt {-a} \arctan \left (\frac {\sqrt {a x + 1} \sqrt {-a}}{a \sqrt {x}}\right )}{a}\right ] \]
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Time = 0.82 (sec) , antiderivative size = 29, normalized size of antiderivative = 0.85 \[ \int \frac {\sqrt {1+a x}}{\sqrt {x}} \, dx=\sqrt {x} \sqrt {a x + 1} + \frac {\operatorname {asinh}{\left (\sqrt {a} \sqrt {x} \right )}}{\sqrt {a}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 68 vs. \(2 (24) = 48\).
Time = 0.27 (sec) , antiderivative size = 68, normalized size of antiderivative = 2.00 \[ \int \frac {\sqrt {1+a x}}{\sqrt {x}} \, dx=-\frac {\log \left (-\frac {\sqrt {a} - \frac {\sqrt {a x + 1}}{\sqrt {x}}}{\sqrt {a} + \frac {\sqrt {a x + 1}}{\sqrt {x}}}\right )}{2 \, \sqrt {a}} - \frac {\sqrt {a x + 1}}{{\left (a - \frac {a x + 1}{x}\right )} \sqrt {x}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 65 vs. \(2 (24) = 48\).
Time = 6.28 (sec) , antiderivative size = 65, normalized size of antiderivative = 1.91 \[ \int \frac {\sqrt {1+a x}}{\sqrt {x}} \, dx=-\frac {a {\left (\frac {\log \left ({\left | -\sqrt {a x + 1} \sqrt {a} + \sqrt {{\left (a x + 1\right )} a - a} \right |}\right )}{\sqrt {a}} - \frac {\sqrt {{\left (a x + 1\right )} a - a} \sqrt {a x + 1}}{a}\right )}}{{\left | a \right |}} \]
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Time = 12.05 (sec) , antiderivative size = 36, normalized size of antiderivative = 1.06 \[ \int \frac {\sqrt {1+a x}}{\sqrt {x}} \, dx=\sqrt {x}\,\sqrt {a\,x+1}+\frac {2\,\mathrm {atanh}\left (\frac {\sqrt {a}\,\sqrt {x}}{\sqrt {a\,x+1}-1}\right )}{\sqrt {a}} \]
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